Hi all,

Awesome forum you have here.... I'm new here, so be gentle lol. I've had some experience with nitros and I fly brushless motors in my aircraft so I'm sorta ok in the knowledge side of things (I think). :D

I've spent the last few days reading up on converting nitros to brushless, more specifically Revo 3.3s and I must say, I'm totally confused lol :D

So, here goes with the questions. First up tho, I just want to say thanks to all of you who contribute and share your knowledge; me wub u long time :D

I suppose I should say what I want to achieve and then ask my questions.

I have a Revo 3.3. Just ordered a center diff as well as the rear brake kit, and a set of Tekno sway bars. After doing all that I stumbled across a Revo Brushless conversion and was effectively bitten by the bug.
Now, having just spent up to get my new diff and brakes etc, when I do my conversion, I would just like to use the motor for forward (and maybe reverse if that can be achieved?).
I would like to use the brakes + brake servo to do the actual braking. I figure that this will help keep some of the ware and tear from the tranny, as well as meaning that my brand new brake kit isn't wasted.

1. Is it possible to use the motor for "thrust" and the existing brakes for braking? Is there any point to doing this, or should I just be taking the brakes off and using the motor?

2. Which motor mount should I be going for? So far, I've found the RCM one for $60, and the Tekno one for $150. The Tekno one comes with a battery mount and some other stuff which I have no doubt that I'd find useful. The Tekno mount stresses that only 5mm shaft motors can be used, whereas the RCM one I assume can use whatever size you attach.

3. Whats the deal with the "Elektri Clutch Adapter" that comes with the Tekno kit? Is it needed, or can I just use the stock clutch on the Revo?

4. Since brushless motors can spin forward and backwards (man this is going to sound really dumb lol, but here goes) will I be able to make the Revo go forward as well as backwards, even with the new center diff, if I convert to brushless? As you know, the center diff has the FOC in it, which is why I ask. It would be cool to have reverse available to me, and I can then just disable it when I'm racing.

5. What sort of ESC should I be looking at? I've just ordered a 4600kv Mamba Max motor and ESC combo, so I can steal the ESC from there. It was going to be for one of my 1/10 cars, but this is a much better project IMO. I assume the MM ESC will be on the cheaper end of ESC's so what would be a better choice for ESC?

6. What motor should I get? I assume I can't use the 4600kv Mamba Max motor as it would be too small. I've seen alot of people recommend the Feigao 540 8/9XL in their cheaper setups, and the NEU motors in the better ones.

7. I'm going to need a separate BEC for the servos etc, so what one is recommended? What do the terms mean with regards to BECs ie Switch Mode.

8. I'm totally scared of LiPos. I fly A123 packs in my aircraft, so I was thinking of using these in the revo. I think I'd be aiming for 2x 5S 2300mAh packs in parallel, so a 2S2P pack. That will give me 16.5v nominal voltage, and 4300mAh capacity.
Does anyone know if that man cells will physically fit in the battery holder that comes with the Tekno kit?
Also, is anyone else running A123s with a setup similar to what mine will be with the Mamba Max ESC; and how are the cells doing?


Well, I think I'm all questioned out. Sorry for the Essay tho :D

Thanks in advance :D